input[type="file"] {
  height: 24rem;
}
.layui-upload {
  box-sizing: border-box;
  padding: 20px;
}
.invisibleItem {
  width: 100%;
  height: 50rem;
  background: #f6f6f6;
  position: relative;
}
.invisibleItem::after {
  content: "仅开发展示";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
